EnviroBell

The EnviroBell uses an array of five sensors to detect patterns of environemental changes  which have been formulated from anomalous data captured at hundreds of paranormal investigations.

The sensors used by the EnviroBell are Air Pressure, Magnetic Field, Electric Field, Temperature, Motion.

If an anomaly is detected, the bell is mechanically rang and a subtle light shines from under the bell, the colour of which will tell you which sensor was triggered.

The device is self calibrating before it starts monitoring and a full instruction sheet provides a table which will allow you to interperate the light colours.

It runs on a 9v Battery, recommended a 400Mah+ capacity.